Crosby, M. R. & o. INSUFFICIENT. 1999. INSUFFICIENTLY known because not REVISED since its pre-1963 publication; that is to say we have no more information about the species than Index Muscorum; merely relisted without additional specimens in a checklist since 1963; may have been treated in a checklist, flora, or revision with specimens before 1963. In Checklist Mosses. Missouri Botanical Garden, St. Louis.